What will be the consequence of failing to polarize a replacement low voltage transformer in an electronic ignition furnace?

In an electronic ignition furnace, properly polarizing a replacement low voltage transformer is crucial for the system's operational integrity. When the transformer is not polarized correctly, it can lead to issues with flame rectification.

Flame rectification is a process that uses a flame to complete a circuit, allowing the control board to determine if a flame is present during the combustion process. If the transformer is not polarized correctly, the electrical polarity may be incompatible with the sensors' operation, leading to incorrect signals being sent to the control board. This can cause the system to misinterpret or fail to recognize whether the flame is present, which in turn can lead to safety issues and operational failures, such as the furnace failing to ignite or shutting down prematurely.

Thus, failing to polarize the transformer can disrupt this critical feedback mechanism, making the flame rectification process ineffective and resulting in operational failures in the electronic ignition system.